Paragraph 18

It shall not be lawful to include in the expenses of and incidental to the arbitration and award, or to charge against any of the parties, any sum payable in respect of remuneration or expenses to any person appointed by the arbiter to act as clerk or otherwise to assist him in the arbitration unless such appointment was made after submission of the claim and answers to the arbiter and with either the consent of the parties to the arbitration or the sanction of the sheriff.